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General Chemistry

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Calculating Heat of Reaction from Molarity of Reactants

CHEM-HZSBIJ

Consider the following reaction:

$$Ba{(OH)}_{2} (aq) + 2HN{O}_{3} (aq) \rightarrow Ba{(N{O}_{3})}_{2 } (aq) + 2{H}_{2}O (l); \Delta H = -116.4 \ \text{kJ/mol rxn}$$

Calculate ${q}_{rxn}$ in J if 10.00 mL of 0.150 M $Ba{(OH)}_{2}$ and 10.00 mL of 0.250 M $HN{O}_{3}$ react.

A

-146 J

B

-175 J

C

-320 J

D

-291 J

E

-466 J